EP2723585A1 - Pneumatic vehicle tire - Google Patents

Pneumatic vehicle tire

Info

Publication number
EP2723585A1
EP2723585A1 EP12725381.3A EP12725381A EP2723585A1 EP 2723585 A1 EP2723585 A1 EP 2723585A1 EP 12725381 A EP12725381 A EP 12725381A EP 2723585 A1 EP2723585 A1 EP 2723585A1
Authority
EP
European Patent Office
Prior art keywords
belt
pneumatic vehicle
reinforcements
tire
vehicle tire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12725381.3A
Other languages
German (de)
French (fr)
Other versions
EP2723585B1 (en
Inventor
Viktor BLÜMEL
Rafal Nojek
Carole Justine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Reifen Deutschland GmbH
Original Assignee
Continental Reifen Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Reifen Deutschland GmbH filed Critical Continental Reifen Deutschland GmbH
Publication of EP2723585A1 publication Critical patent/EP2723585A1/en
Application granted granted Critical
Publication of EP2723585B1 publication Critical patent/EP2723585B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/005—Reinforcements made of different materials, e.g. hybrid or composite cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0064—Reinforcements comprising monofilaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2048—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by special physical properties of the belt plies
    • B60C2009/2051—Modulus of the ply
    • B60C2009/2058—Modulus of the ply being different between adjacent plies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C2009/2252—Physical properties or dimension of the zero degree ply cords

Definitions

  • the invention relates to a pneumatic vehicle tire with two or more intersecting at an angle, strength member made of steel belt layers and having a single or multi-layer running, strength member having belt bandage.
  • Radial pneumatic tires have u.a. a belt and often a belt bandage on.
  • the belt consisting of two or more belt layers crossing at an angle provides the rigidity of the tread in the longitudinal and transverse directions. This is used when driving the power transmission, improves the side guide and reduces the abrasion of the tire.
  • Belt bandage is essentially used to additionally absorb forces in the circumferential direction, for example, the tire growth due to centrifugal forces in the
  • the belt bandage may cover the belt, or else the belt bandage as a whole or individual bandage layers may be located between or under the belt plies. It is known and customary today to use steel cords as reinforcements in the belt layers of the belt. The steel cords are arranged substantially parallel and spaced from one another within the reinforcement layer, and in
  • Embedded rubber material Belt layers installed in passenger car tires often have steel cords of construction 2 x 0.30 mm, with a setting of 80 epdm or more.
  • the cord construction 2 x 0.30 mm means that two wires (filaments) of 0.30 mm in diameter are twisted together to form a cord, so that the cord has a diameter of about 0.60 mm.
  • the cords of this diameter are forming in Embedded rubber. The larger the cord diameter, the more rubber is generally needed for embedding the cords and the heavier each belt ply and the tire.
  • a belt layer as described above is constructed so as to have a tension of about 20,000 N by the dm width or more at a given elongation of 1%.
  • a disadvantage of the belt layers with the aforementioned steel cords is that these
  • Belt bandages installed in passenger car tires often have one or two layers of 940x2 rubberized nylon cords at 80 epdm.
  • Nylon is often used because this material has heat shrinkage, that is, it shrinks when heated. This is advantageous both in the vulcanization of the tire as well as in high-speed operation, because the belt bandage then the
  • Cohesion of the belt package promotes. In addition, this prevents, however, that the belt bandage comes into operation during operation, which is detrimental to their durability fatigue resistance and can lead to fractures of the bandage material.
  • the object is achieved by having at least one belt ply at a predetermined elongation of 1% in the direction of the reinforcement longitudinal extent of a tension ⁇ 19,000 N by dm width, wherein the reinforcing elements of the belt plies form an angle of 18 ° to 45 ° with the circumferential direction of the tire the reinforcements of the belt bandage are made of a non-metallic material and have a heat shrinkage.
  • strength carriers are used with reduced weight in the belt layers whose reduced modulus by either the
  • the cost and weight savings can be achieved, for example, by reducing the number of reinforcing elements used per dm or the diameter of the reinforcement used.
  • the reinforcements of at least one belt ply may consist of cords twisted into cords, each filament being e.g. one
  • Diameter is less than 0.24mm and the setting is less than or equal to 80 epdm, or single wires of a diameter less than or equal to 0.30mm at a setting of about 110 or 120 epdm.
  • the tire according to the invention is inexpensive, has an improved due to its reduced weight
  • Rolling resistance and also has an improved high speed capability.
  • HT high-Tensile
  • UHT ultra-high-Tensile
  • Reinforcements of the high-tensile range have, depending on the filament diameter, a breaking strength of about 3000 MPa to 3500MPa, while corresponding
  • the reinforcements of the belt bandage are preferably materials from the classes polyester or polyamide. Also, hybrid constructions of cellulose based materials (such as rayon or lyocell), PVA, PEN, POK, Vectran, or aramid can each be used with polyester or nylon. It is essential that at least one material of the reinforcement has heat shrink properties. It is advantageous if the reinforcements of the belt layer have the construction 1 x 0.28, 1 x 0.29, 1 x 0.30, 1 x 0.31 or 1 x 0.32 and are arranged in each belt ply with about 110 epdm, and / or if only one belt bandage is used, what the
  • Example is achieved in that the strength member of the belt bandage is a polyester cord of construction 1440 x 2 at 105 epdm.
  • the tire has a particularly low rolling resistance, without sacrificing other essential properties. It is essential that the structures of the reinforcements of the belt layers and the bandage are adjusted to one another according to the invention in order to obtain a suitable dynamic ground contact surface during operation of the tire.
  • the belt bandage may be spooled and have a patchy winding pattern such that the effective cord density is reduced.
  • the tire according to the invention is reduced in weight, the use in comparatively heavy run-flat tires, such as in an SSR tire or a tire with a self-adhesive viscous sealing layer arranged radially inwardly of the tire inner layer, is suitable.
  • SSR tires are tires with reinforcing profiles in the
  • Tires with a sealing layer which is located between the shoulders under the tread on the tire inner layer, are characterized in that when a foreign body penetrates the tread of the pneumatic vehicle tire, this is enclosed by the sealing layer and a possible
  • a preferred example of a construction according to the invention of a passenger tire of tire dimension 205/55 R 16 comprises a 2-ply belt made of HT steel wires Construction 1 x 0.30 at about 110 epdm with the HT steel cords at an angle of 28 ° with the tire circumferential direction, and has a 1440 x 2 14-gauge polyester single-layer bandage at about 105 epdm, wherein the cords of polyester are arranged approximately in the tire circumferential direction and the
  • Each belt layer has a predetermined elongation of 1% in
  • a tension of about 16,500 N per dm width and the belt bandage has a predetermined elongation of 1%, a tension of about 2,000 N per dm width.
  • a suitable dynamic ground contact patch is obtained.
  • a tire tire 205/55 R 16 tire design has a 2-ply belt wherein the 1st belt ply of HT steel wires of the construction is 1 x 0.30 at about 120 epdm and an angle of 32 ° with the tire circumferential direction, the 2nd belt ply of HT steel cords of construction 2 x 0.30 at about 80 epdm and enclosing an angle of 24 ° with the tire circumferential direction, and has a 1-ply bandage with cords made of nylon 940 x 2 construction at about 80 epdm, with the nylon cords arranged approximately in the tire circumferential direction and covering the belt plies.
  • the first belt layer has a predetermined elongation of 1% in the direction of
  • the pneumatic vehicle tire according to the invention may be a passenger car, van, or a light truck pneumatic tire.
  • a vehicle pneumatic tire according to the invention in its most general form has two or more belt layers crossing at an angle and having a strength carrier with one or more layers, wherein the reinforcements of the belt layers and the belt bandage are arranged substantially parallel and spaced from one another embedded in rubber material, and wherein at least one belt ply at a given elongation of 1% in the direction of the reinforcing longitudinal strength has a tension of ⁇ 19000 N by the width, and wherein the reinforcing members of the belt plies form an angle of 18 ° to 45 ° with the circumferential direction of the tire, and wherein the reinforcing members of the
  • Belt bandage are disposed within the reinforcement layer approximately in the tire circumferential direction and are made of a material having a heat shrink.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

The invention relates to a pneumatic vehicle tire comprising two or more belt layers which cross each other at an angle and which have reinforcements and comprising a belt bandage which is designed in one or more layers and which has reinforcements. The reinforcements of the belt layers are solely made of steel, at least one belt layer having a tension of < 19,000 N per dm of width at a specified extension of 1%, and the reinforcements of the belt layers form an angle of 18° to 45° with the circumferential direction of the tire. The reinforcements of the belt bandage are made of a nonmetal heat-shrink material.

Description

Beschreibung  description
Fahrzeugluftreifen Vehicle tires
Die Erfindung betrifft einen Fahrzeugluftreifen mit zwei oder mehr sich in einem Winkel kreuzenden, Festigkeitsträger aus Stahl aufweisenden Gürtellagen und mit einer, ein- oder mehrlagig ausgeführten, Festigkeitsträger aufweisenden Gürtelbandage. The invention relates to a pneumatic vehicle tire with two or more intersecting at an angle, strength member made of steel belt layers and having a single or multi-layer running, strength member having belt bandage.
Konstruktionen von Fahrzeugluftreifen sind dem Fachmann hinreichend bekannt. Constructions of pneumatic vehicle tires are well known to those skilled in the art.
Radialluftreifen weisen u.a. einen Gürtel und häufig eine Gürtelbandage auf. Der aus zwei oder mehr sich in einem Winkel kreuzenden Gürtellagen bestehende Gürtel sorgt für die Steifigkeit der Lauffläche in Längs- und Querrichtung. Dieses dient beim Fahren der Kraftübertragung, verbessert die Seitenführung und verringert den Abrieb des Reifens. Die aus einer oder mehreren umfangsorientierten Lagen bestehende Radial pneumatic tires have u.a. a belt and often a belt bandage on. The belt consisting of two or more belt layers crossing at an angle provides the rigidity of the tread in the longitudinal and transverse directions. This is used when driving the power transmission, improves the side guide and reduces the abrasion of the tire. The existing of one or more circumferentially oriented layers
Gürtelbandage dient im Wesentlichen dazu, zusätzlich Kräfte in Umfangsrichtung aufzunehmen, um beispielsweise das Reifenwachstums aufgrund von Fliehkräften imBelt bandage is essentially used to additionally absorb forces in the circumferential direction, for example, the tire growth due to centrifugal forces in the
Betrieb des Reifens zu begrenzen. Die Gürtelbandage kann den Gürtel abdecken, oder aber auch kann die Gürtelbandage insgesamt oder können einzelne Bandagenlagen sich zwischen oder unter den Gürtellagen befinden. Es ist bekannt und heutzutage üblich, Stahlkorde als Festigkeitsträger in den Gürtellagen des Gürtels einzusetzen. Die Stahlkorde sind innerhalb der Festigkeitsträgerlage im Wesentlichen parallel und beabstandet zueinander angeordnet sind und in Limit operation of the tire. The belt bandage may cover the belt, or else the belt bandage as a whole or individual bandage layers may be located between or under the belt plies. It is known and customary today to use steel cords as reinforcements in the belt layers of the belt. The steel cords are arranged substantially parallel and spaced from one another within the reinforcement layer, and in
Kautschukmaterial eingebettet. In PKW-Luftreifen verbaute Gürtellagen weisen häufig Stahlkorde der Konstruktion 2 x 0,30 mm auf, bei einer Einstellung von 80 epdm oder mehr. Die Kordkonstruktion 2 x 0,30 mm bedeutet, dass zwei Drähte (Filamente) von 0,30 mm Durchmesser miteinander zu einem Kord verdreht sind, so dass der Kord einen Durchmesser von ca. 0,60 mm hat. Die Korde dieses Durchmessers sind lagenbildend in Kautschuk eingebettet. Je größer der Korddurchmesser ist, desto mehr Kautschuk wird im allgemeinen für die Einbettung der Korde benötigt und desto schwerer ist jede Gürtellage und der Reifen. Embedded rubber material. Belt layers installed in passenger car tires often have steel cords of construction 2 x 0.30 mm, with a setting of 80 epdm or more. The cord construction 2 x 0.30 mm means that two wires (filaments) of 0.30 mm in diameter are twisted together to form a cord, so that the cord has a diameter of about 0.60 mm. The cords of this diameter are forming in Embedded rubber. The larger the cord diameter, the more rubber is generally needed for embedding the cords and the heavier each belt ply and the tire.
Eine vorbeschriebene Gürtellage ist derart konstruiert, dass diese bei einer vorgegebenen Dehnung von 1% eine Spannung von ca. 20.000 N per dm Breite oder mehr aufweist. Nachteilig an den Gürtellagen mit vorgenannten Stahlkorden ist, dass diese  A belt layer as described above is constructed so as to have a tension of about 20,000 N by the dm width or more at a given elongation of 1%. A disadvantage of the belt layers with the aforementioned steel cords is that these
vergleichsweise schwer an Gewicht und materialaufwendig sind. relatively heavy in weight and material are consuming.
Es ist ebenfalls bekannt und heutzutage üblich, Gürtelbandagen in Kombination mit Stahlgürteln einzusetzen. In Pkw-Luftreifen verbaute Gürtelbandagen weisen häufig ein oder zwei Lagen gummierte Nylonkorde der Konstruktion 940x2 bei 80 epdm auf. Nylon wird häufig verwendet, weil dieses Material einen Heißschrumpf aufweist, das heißt, es schrumpft bei Erhitzen. Das ist sowohl bei der Vulkanisation des Reifens als auch beim Hochgeschwindigkeitsbetrieb von Vorteil, weil die Gürtelbandage dann den It is also known and customary today to use belt bandages in combination with steel belts. Belt bandages installed in passenger car tires often have one or two layers of 940x2 rubberized nylon cords at 80 epdm. Nylon is often used because this material has heat shrinkage, that is, it shrinks when heated. This is advantageous both in the vulcanization of the tire as well as in high-speed operation, because the belt bandage then the
Zusammenhalt des Gürtelpaketes fördert. Außerdem wird dadurch dagegen vorgebeugt, dass die Gürtelbandage beim Betrieb in Kompression gerät, was nachteilig für deren Dauerermüdungsbeständigkeit ist und zu Brüchen des Bandagenmaterials führen kann. Cohesion of the belt package promotes. In addition, this prevents, however, that the belt bandage comes into operation during operation, which is detrimental to their durability fatigue resistance and can lead to fractures of the bandage material.
Die Bestrebungen der Reifenentwicklungen gehen beständig dahin, einen kostengünstigen Reifen mit geringem Gewicht bereitzustellen, bei dem aber die Performance auf einem hohen Niveau gehalten ist. The efforts of tire developments are consistently to provide a low-cost, low-weight tire but with high performance.
Es ist daher die Aufgabe der Erfindung, einen kostengünstigen Fahrzeugluftreifen geringen Gewichtes bereitzustellen, der aber dennoch eine gute Performance aufweist. It is therefore the object of the invention to provide a low-cost pneumatic vehicle tire of low weight, but still has a good performance.
Die Aufgabe wird gelöst, indem mindestens eine Gürtellage bei vorgegebener Dehnung um 1% in Richtung der Festigkeitsträgerlängserstreckung eine Spannung < 19.000 N per dm Breite aufweist, wobei die Festigkeitsträger der Gürtellagen einen Winkel von 18° bis 45° mit der Umfangsrichtung des Reifens einschließen, wobei die Festigkeitsträger der Gürtelbandage aus einem nicht-metallischen Werkstoff sind und einen Heißschrumpf aufweisen. Erfindungsgemäß ist erreicht, dass Festigkeitsträger mit verringertem Gewicht in den Gürtellagen eingesetzt werden, deren verringerter Modul durch entweder den The object is achieved by having at least one belt ply at a predetermined elongation of 1% in the direction of the reinforcement longitudinal extent of a tension <19,000 N by dm width, wherein the reinforcing elements of the belt plies form an angle of 18 ° to 45 ° with the circumferential direction of the tire the reinforcements of the belt bandage are made of a non-metallic material and have a heat shrinkage. According to the invention it is achieved that strength carriers are used with reduced weight in the belt layers whose reduced modulus by either the
vergleichsweise hohen Kraftaufbau bei Dehnung der Gürtelbandage kompensiert wird, oder dadurch, dass in der anderen Gürtellage ein hinreichend starkes Material verwendet wird. Die Kosten- und Gewichtsersparnis ist beispielsweise dadurch erzielbar, dass die Anzahl der eingesetzten Festigkeitsträger pro dm oder der Durchmesser der eingesetzten Festigkeitsträger reduziert ist. Die Festigkeitsträger mindestens einer Gürtellage können aus zu Korden verdrehten Filamenten bestehen, wobei jedes Filament z.B. einen comparatively high force build-up is compensated upon stretching of the belt bandage, or in that in the other belt layer, a sufficiently strong material is used. The cost and weight savings can be achieved, for example, by reducing the number of reinforcing elements used per dm or the diameter of the reinforcement used. The reinforcements of at least one belt ply may consist of cords twisted into cords, each filament being e.g. one
Durchmesser kleiner als 0,24mm aufweist und die Einstellung kleiner oder gleich 80 epdm ist, oder aus Einzeldrähten von einem Durchmesser kleiner oder gleich 0,30mm bei einer Einstellung von ca. 110 oder 120 epdm. Diameter is less than 0.24mm and the setting is less than or equal to 80 epdm, or single wires of a diameter less than or equal to 0.30mm at a setting of about 110 or 120 epdm.
Es ist eine hohe Performance erreicht, da im Betrieb des Reifens eine geeignete dynamische Bodenaufstandsfläche erhalten ist. Durch den Einsatz von Festigkeitsträgern mit verringertem Durchmesser in den Gürtellagen wird das Gewicht des It is achieved a high performance, since in the operation of the tire a suitable dynamic ground contact patch is obtained. The use of reduced diameter braces in the belt layers increases the weight of the belt
Fahrzeugluftreifens vorteilhafterweise reduziert. Der erfindungsgemäße Reifen ist kostengünstig, weist aufgrund seines verringerten Gewichtes einen verbesserten Pneumatic vehicle tire advantageously reduced. The tire according to the invention is inexpensive, has an improved due to its reduced weight
Rollwiderstand auf und besitzt zudem eine verbesserte Hochgeschwindigkeitstauglichkeit. Rolling resistance and also has an improved high speed capability.
Vorteilhaft ist es, wenn die Festigkeitsträger der Gürtellage Stähle aus dem It is advantageous if the strength element of the belt layer steels from the
Festigkeitsbereich High-Tensile (HT) oder Ultra-High-Tensile (UHT) sind. Die Strength range high-Tensile (HT) or ultra-high-Tensile (UHT) are. The
Festigkeitsträger des High-Tensile-Bereichs weisen, je nach Filamentdurchmesser, eine Bruchfestigkeit von etwa 3000 MPa bis 3500MPa auf, während entsprechende Reinforcements of the high-tensile range have, depending on the filament diameter, a breaking strength of about 3000 MPa to 3500MPa, while corresponding
Festigkeitsträger des Ultra-High-Tensile-Bereichs eine um etwa 500 MPa höhere Reinforcements of the ultra-high-Tensile-range by about 500 MPa higher
Festigkeit aufweisen. Have strength.
Die Festigkeitsträger der Gürtelbandage sind bevorzugt Materialien aus den Klassen Polyester oder Polyamid. Es können ebenfalls Hybridkonstruktionen aus Zellulose basierten Materialien (wie z.B. Rayon oder Lyocell), aus PVA, PEN, POK, Vectran oder Aramid jeweils mit Polyester oder Nylon eingesetzt werden. Wesentlich ist, dass zumindest ein Material des Festigkeitsträgers Heißschrumpfeigenschaften besitzt. Vorteilhaft ist, wenn die Festigkeitsträger der Gürtellage die Konstruktion 1 x 0,28, 1 x 0.29, 1 x 0,30, 1 x 0,31 oder 1 x 0.32 aufweisen und in jeder Gürtellage mit etwa 110 epdm angeordnet sind, und/ oder wenn nur eine Gürtelbandage verwendet wird, was zum The reinforcements of the belt bandage are preferably materials from the classes polyester or polyamide. Also, hybrid constructions of cellulose based materials (such as rayon or lyocell), PVA, PEN, POK, Vectran, or aramid can each be used with polyester or nylon. It is essential that at least one material of the reinforcement has heat shrink properties. It is advantageous if the reinforcements of the belt layer have the construction 1 x 0.28, 1 x 0.29, 1 x 0.30, 1 x 0.31 or 1 x 0.32 and are arranged in each belt ply with about 110 epdm, and / or if only one belt bandage is used, what the
Beispiel dadurch erreicht wird, dass der Festigkeitsträger der Gürtelbandage ein Polyester- Kord der Konstruktion 1440 x 2 bei 105 epdm ist. Bei dieser Kombination weist der Reifen einen besonders niedrigen Rollwiderstand auf, ohne Abstriche in anderen wesentlichen Eigenschaften aufweisen. Wesentlich ist, dass die Konstruktionen der Festigkeitsträger der Gürtellagen und der Bandage aufeinander erfindungsgemäß eingestellt sind, um im Betrieb des Reifens eine geeignete dynamische Bodenaufstandsfläche zu erhalten. Die Gürtelbandage kann gespult sein und ein lückenhaftes Spulmuster aufweisen, derart, dass die effektive Korddichte verringert ist. Example is achieved in that the strength member of the belt bandage is a polyester cord of construction 1440 x 2 at 105 epdm. In this combination, the tire has a particularly low rolling resistance, without sacrificing other essential properties. It is essential that the structures of the reinforcements of the belt layers and the bandage are adjusted to one another according to the invention in order to obtain a suitable dynamic ground contact surface during operation of the tire. The belt bandage may be spooled and have a patchy winding pattern such that the effective cord density is reduced.
Da der erfindungsgemäße Reifen an Gewicht verringert ist, bietet sich der Einsatz in vergleichsweise schweren Notlaufreifen wie in einem SSR-Reifen oder einem Reifen mit einer radial innen an der Reifeninnenschicht angeordneten, selbsthaftenden viskosen Dichtschicht an. Since the tire according to the invention is reduced in weight, the use in comparatively heavy run-flat tires, such as in an SSR tire or a tire with a self-adhesive viscous sealing layer arranged radially inwardly of the tire inner layer, is suitable.
Das„Mehrgewicht" dieser Notlaufreifen kann vorteilhafterweise durch die The "extra weight" of these runflat tires can advantageously be achieved by the
vorbeschriebene Gürtellagen- und Bandagenkonstruktion kompensiert werden. SSR-Reifen (Self-Supporting-Runflat) sind Reifen mit Verstärkungsprofilen in den above-described belt ply and bandage construction can be compensated. SSR tires (Self-Supporting Runflat) are tires with reinforcing profiles in the
Reifenseitenwänden, durch die der Reifen auch bei Entlüftung über eine gewisse Tire sidewalls, through which the tire even when venting over a certain
Fahrstrecke selbsttragend erhalten bleibt. Reifen mit Dichtschicht, welche sich zwischen den Schultern unter dem Laufstreifen auf der Reifeninnenschicht befindet, zeichnen sich dadurch aus, dass, wenn ein Fremdkörper die Lauffläche des Fahrzeugluftreifens penetriert, dieser durch die Dichtschicht umschlossen wird und einem eventuellen Driving distance remains self-supporting. Tires with a sealing layer, which is located between the shoulders under the tread on the tire inner layer, are characterized in that when a foreign body penetrates the tread of the pneumatic vehicle tire, this is enclosed by the sealing layer and a possible
Luftverlust durch quasi sofortiges Abdichten vorbeugt. Air loss by virtually immediate sealing prevents.
Ein bevorzugtes Beispiel einer erfindungsgemäßen Konstruktion eines PKW-Reifens der Reifendimension 205/55 R 16 weist einen 2-lagigen Gürtel aus HT-Stahl-Drähten der Konstruktion 1 x 0.30 bei etwa 110 epdm auf, wobei die HT-Stahl- Korde einen Winkel von 28° mit der Reifenumfangsrichtung einschließen, und weist eine 1 -lagige Bandage mit Korden aus Polyester der Konstruktion 1440 x 2 bei in etwa 105 epdm auf, wobei die Korde aus Polyester in etwa in Reifenumfangsrichtung angeordnet sind und die A preferred example of a construction according to the invention of a passenger tire of tire dimension 205/55 R 16 comprises a 2-ply belt made of HT steel wires Construction 1 x 0.30 at about 110 epdm with the HT steel cords at an angle of 28 ° with the tire circumferential direction, and has a 1440 x 2 14-gauge polyester single-layer bandage at about 105 epdm, wherein the cords of polyester are arranged approximately in the tire circumferential direction and the
Gürtellagen abdecken. Jede Gürtellage weist bei vorgegebener Dehnung um 1% in Cover belt layers. Each belt layer has a predetermined elongation of 1% in
Richtung der Festigkeitsträg erlängserstreckung eine Spannung von etwa 16.500 N per dm Breite auf und die Gürtelbandage weist bei vorgegebener Dehnung um 1% eine Spannung von etwa 2.000 N per dm Breite auf. Im Betrieb des PKW-Reifens ist eine geeignete dynamische Bodenaufstandsfläche erhalten.  In the direction of the tensile strength extension, a tension of about 16,500 N per dm width and the belt bandage has a predetermined elongation of 1%, a tension of about 2,000 N per dm width. In the operation of the passenger car tire, a suitable dynamic ground contact patch is obtained.
Ein anderes bevorzugtes Beispiel einer erfindungsgemäßen Konstruktion eines PKW- Reifens der Reifendimension 205/55 R 16 weist einen 2-lagigen Gürtel auf, wobei die 1. Gürtellage aus HT-Stahl-Drähten der Konstruktion 1 x 0.30 bei etwa 120 epdm besteht und einen Winkel von 32° mit der Reifenumfangsrichtung einschließt, die 2. Gürtellage aus HT-Stahl-Korden der Konstruktion 2 x 0.30 bei etwa 80 epdm besteht und einen Winkel von 24° mit der Reifenumfangsrichtung einschließt, und weist eine 1 -lagige Bandage mit Korden aus Nylon der Konstruktion 940 x 2 bei in etwa 80 epdm auf, wobei die Korde aus Nylon in etwa in Reifenumfangsrichtung angeordnet sind und die Gürtellagen abdecken. Die 1. Gürtellage weist bei vorgegebener Dehnung um 1% in Richtung der Another preferred example of a tire tire 205/55 R 16 tire design according to the invention has a 2-ply belt wherein the 1st belt ply of HT steel wires of the construction is 1 x 0.30 at about 120 epdm and an angle of 32 ° with the tire circumferential direction, the 2nd belt ply of HT steel cords of construction 2 x 0.30 at about 80 epdm and enclosing an angle of 24 ° with the tire circumferential direction, and has a 1-ply bandage with cords made of nylon 940 x 2 construction at about 80 epdm, with the nylon cords arranged approximately in the tire circumferential direction and covering the belt plies. The first belt layer has a predetermined elongation of 1% in the direction of
Festigkeitsträgerlängserstreckung eine Spannung von etwa 18.500 N per dm Breite auf und die 2. Gürtellage weist bei vorgegebener Dehnung um 1% eine Spannung von etwa 24.000 N per dm Breite auf. Dieses Beispiel einer bevorzugten Konstruktion weist eine erhöhte Durchschlagsfestigkeit gegenüber Beschädigungen als das erste Beispiel auf. Der erfindungsgemäße Fahrzeugluftreifen kann ein PKW-, Van-, oder ein Light Truck- Luftreifen sein. Reinforcement longitudinal extent of a tension of about 18,500 N by dm width and the 2nd belt layer has a predetermined elongation of 1% to a tension of about 24,000 N by dm width. This example of a preferred construction has an increased breakdown resistance to damage than the first example. The pneumatic vehicle tire according to the invention may be a passenger car, van, or a light truck pneumatic tire.
Ein erfindungsgemäßer Fahrzeugluftreifen in seiner allgemeinsten Form weist zwei oder mehr sich in einem Winkel kreuzende, Festigkeitsträger aufweisende Gürtellagen sowie eine, ein- oder mehrlagig ausgeführte, Festigkeitsträger aufweisende Gürtelbandage auf, wobei die Festigkeitsträger der Gürtellagen und der Gürtelbandage im Wesentlichen parallel und beabstandet zueinander angeordnet und in Kautschukmaterial eingebettet sind, und wobei mindestens eine Gürtellage bei vorgegebener Dehnung um 1% in Richtung der Festigkeitsträgerlängserstreckung eine Spannung < 19000 N per dm Breite aufweist, und wobei die Festigkeitsträger der Gürtellagen einen Winkel von 18° bis 45° mit der Umfangsrichtung des Reifens einschließen, und wobei die Festigkeitsträger der A vehicle pneumatic tire according to the invention in its most general form has two or more belt layers crossing at an angle and having a strength carrier with one or more layers, wherein the reinforcements of the belt layers and the belt bandage are arranged substantially parallel and spaced from one another embedded in rubber material, and wherein at least one belt ply at a given elongation of 1% in the direction of the reinforcing longitudinal strength has a tension of <19000 N by the width, and wherein the reinforcing members of the belt plies form an angle of 18 ° to 45 ° with the circumferential direction of the tire, and wherein the reinforcing members of the
Gürtelbandage innerhalb der Festigkeitsträgerlage in etwa in Reifenumfangsrichtung angeordnet sind und aus einem Werkstoff sind, welcher einen Heißschrumpf aufweist. Die Merkmale der Ansprüche 1 - 10 können vorteilhafte Ausgestaltungen des Gegenstandes des Anspruchs 11 sein. Belt bandage are disposed within the reinforcement layer approximately in the tire circumferential direction and are made of a material having a heat shrink. The features of claims 1-10 may be advantageous embodiments of the subject matter of claim 11.

Claims

Patentansprüche claims
1. Fahrzeugluftreifen mit zwei oder mehr sich in einem Winkel kreuzenden, 1. pneumatic vehicle tire with two or more intersecting at an angle
Festigkeitsträger aufweisenden Gürtellagen und mit einer, ein- oder mehrlagig ausgeführten, Festigkeitsträger aufweisenden Gürtelbandage,  Reinforcement having belt layers and with a one or more layers executed, strength carrier having belt bandage,
wobei die Festigkeitsträger der Gürtellagen ausschließlich aus Stahl sind, welche innerhalb jeder Gürtellage im Wesentlichen parallel und beabstandet zueinander angeordnet und in Kautschukmaterial eingebettet sind,  wherein the reinforcing members of the belt plies are made exclusively of steel which are arranged substantially parallel and spaced apart from each other within each belt ply and embedded in rubber material,
dadurch gekennzeichnet, dass mindestens eine Gürtellage bei vorgegebener Dehnung um 1% in Richtung der Festigkeitsträgerlängserstreckung eine Spannung < 19.000 N per dm Breite aufweist,  characterized in that at least one belt layer at a predetermined elongation of 1% in the direction of the reinforcing element longitudinal extension has a tension <19,000 N by dm width,
dass die Festigkeitsträger der Gürtellagen einen Winkel von 18° bis 45° mit der Umfangsrichtung des Reifens einschließen,  the reinforcements of the belt plies enclose an angle of 18 ° to 45 ° with the circumferential direction of the tire,
und dass die Festigkeitsträger der Gürtelbandage aus einem nicht-metallischen Werkstoff sind, welche innerhalb der Festigkeitsträgerlage im Wesentlichen parallel und beabstandet zueinander in etwa in Reifenumfangsrichtung angeordnet sind und einen Heißschrumpf aufweisen.  and that the reinforcements of the belt bandage are made of a non-metallic material, which are arranged within the reinforcing layer substantially parallel and spaced from each other approximately in the tire circumferential direction and have a heat shrink.
2. Fahrzeugluftreifen nach Anspruch 1, 2. Pneumatic vehicle tire according to claim 1,
dadurch gekennzeichnet, dass die Festigkeitsträger der Gürtellage Stähle aus dem High-Tensile (HT) - oder aus dem Ultra-High-Tensile (UHT) - Festigkeitsbereich sind.  characterized in that the reinforcements of the belt layer are steels of the high-Tensile (HT) - or of the Ultra-High-Tensile (UHT) - strength range.
3. Fahrzeugluftreifen nach Anspruch 1 , 3. pneumatic vehicle tire according to claim 1,
dadurch gekennzeichnet, dass die Festigkeitsträger der Gürtelbandage Materialien aus den Klassen Polyester, Polyamid sind oder Hybridkonstruktionen aus Zellulose basierten Materialien (wie z.B. Rayon oder Lyocell), aus PVA, PEN, POK, Vectran oder Aramid jeweils mit Polyester oder Nylon sind. characterized in that the reinforcements of the belt bandage are materials of the classes polyester, polyamide or hybrid constructions of cellulose based materials (such as rayon or lyocell), PVA, PEN, POK, Vectran or aramid, each with polyester or nylon.
4. Fahrzeugluftreifen nach Anspruch 2, 4. pneumatic vehicle tire according to claim 2,
dadurch gekennzeichnet, dass die Festigkeitsträger der Gürtellage die Konstruktion 1 x 0,28, 1 x 0.29, 1 x 0,30, 1 x 0,31 oder 1 x 0.32 aufweisen und in jeder  characterized in that the strength members of the belt ply have the construction 1 x 0.28, 1 x 0.29, 1 x 0.30, 1 x 0.31 or 1 x 0.32 and in each
Gürtellage mit etwa 110 epdm angeordnet sind.  Belt layer with about 110 epdm are arranged.
5. Fahrzeugluftreifen nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Festigkeitsträger der Gürtelbandage ein 5. Pneumatic vehicle tire according to one or more of the preceding claims, characterized in that the strength element of the belt bandage a
Polyester-Kord der Konstruktion 1440 x 2 bei 105 epdm ist.  1440 x 2 construction polyester cord at 105 epdm's.
6. Fahrzeugluftreifen nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Festigkeitsträger jeder Gürtellage einen Winkel von 27° bis 35°, vorzugsweise von etwa 28° mit der Reifenumfangsrichtung einschließen. 6. Pneumatic vehicle tire according to one or more of the preceding claims, characterized in that the strength members of each belt layer enclose an angle of 27 ° to 35 °, preferably of about 28 ° with the tire circumferential direction.
7. Fahrzeugluftreifen nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, dass eine Gürtellage bei vorgegebener Dehnung um 1% in Richtung der Festigkeitsträgerlängserstreckung eine niedrigere Spannung per dm Breite aufweist als die andere(n), und dass die Festigkeitsträger dieser einen Gürtellage einen größeren Winkel mit der Reifenumfangsrichtung einschließen als diejenigen der anderen Gürtellage(n). 7. Pneumatic vehicle tire according to one or more of the preceding claims, characterized in that a belt layer at a given elongation of 1% in the direction of the reinforcing member longitudinal extension has a lower tension dm width than the other (n), and that the strength of this carrier belt a larger Include angles with the tire circumferential direction than those of the other belt layer (s).
8. Fahrzeugluftreifen nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Gürtellagen geschnittene Gürtellagen sind. 8. pneumatic vehicle tire according to one or more of the preceding claims, characterized in that the belt layers are cut belt layers.
9. Fahrzeugluftreifen nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Fahrzeugluftreifen Notlaufeigenschaften durch unterhalb des Gürtels im Reifenschulterbereich und innerhalb der Seitenwände des Reifens angeordnete, im Querschnitt mondsichelförmige, über den Umfang der Seitenwand ringförmig geschlossene Verstärkungsprofile aufweist. 9. Pneumatic vehicle tire according to one or more of the preceding claims, characterized in that the pneumatic vehicle tire runflat properties by below the belt in the tire shoulder region and within the side walls of the tire arranged in cross-section crescent-shaped, over the circumference of the side wall annularly closed reinforcing profiles.
10. Fahrzeugluftreifen nach einem oder mehreren der vorangehenden Ansprüche 1 - 8, dadurch gekennzeichnet, dass der Fahrzeugluftreifen radial innen an der 10. pneumatic vehicle tire according to one or more of the preceding claims 1-8, characterized in that the pneumatic vehicle tire radially inward on the
Reifeninnenschicht eine selbsthaftende viskose Dichtschicht aufweist.  Tire inner layer has a self-adhesive viscous sealing layer.
11. Fahrzeugluftreifen mit zwei oder mehr sich in einem Winkel kreuzenden, 11. Pneumatic vehicle tires having two or more intersecting angles
Festigkeitsträger aufweisenden Gürtellagen und mit einer, ein- oder mehrlagig ausgeführten, Festigkeitsträger aufweisenden Gürtelbandage, wobei die  Reinforcements having belt layers and with a one or more layers executed, strength carrier having belt bandage, said the
Festigkeitsträger der Gürtellagen und der Gürtelbandage im Wesentlichen parallel und beabstandet zueinander angeordnet und in Kautschukmaterial eingebettet sind, und wobei mindestens eine Gürtellage bei vorgegebener Dehnung um 1% in Richtung der Festigkeitsträg erlängserstreckung eine Spannung < 19.000 N per dm Breite aufweist,  Reinforcements of the belt layers and the belt bandage are arranged substantially parallel and spaced apart from each other and embedded in rubber material, and wherein at least one belt ply at a predetermined elongation of 1% in the direction of the tensile strength extension extension has a tension <19,000 N by dm width
und wobei die Festigkeitsträger der Gürtellagen einen Winkel von 18° bis 45° mit der Umfangsrichtung des Reifens einschließen,  and wherein the reinforcements of the belt plies enclose an angle of 18 ° to 45 ° with the circumferential direction of the tire,
und wobei die Festigkeitsträger der Gürtelbandage innerhalb der  and wherein the reinforcements of the belt bandage are within the
Festigkeitsträgerlage in etwa in Reifenumfangsrichtung angeordnet sind und aus einem Werkstoff sind, welcher einen Heißschrumpf aufweist.  Reinforcement layer are arranged approximately in the tire circumferential direction and are made of a material having a heat shrink.
EP12725381.3A 2011-06-23 2012-05-31 Pneumatic vehicle tire Active EP2723585B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011051288A DE102011051288A1 (en) 2011-06-23 2011-06-23 Vehicle tires
PCT/EP2012/060231 WO2012175305A1 (en) 2011-06-23 2012-05-31 Pneumatic vehicle tire

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EP2723585A1 true EP2723585A1 (en) 2014-04-30
EP2723585B1 EP2723585B1 (en) 2017-09-13

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EP12725381.3A Active EP2723585B1 (en) 2011-06-23 2012-05-31 Pneumatic vehicle tire

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EP (1) EP2723585B1 (en)
DE (1) DE102011051288A1 (en)
ES (1) ES2651146T3 (en)
WO (1) WO2012175305A1 (en)

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Publication number Priority date Publication date Assignee Title
FR3069486A1 (en) * 2017-07-28 2019-02-01 Compagnie Generale Des Etablissements Michelin BANDAGE WITH IMPROVED BELT STRUCTURE
FR3069488A1 (en) 2017-07-28 2019-02-01 Compagnie Generale Des Etablissements Michelin BANDAGE WITH IMPROVED BELT STRUCTURE
FR3069487A1 (en) * 2017-07-28 2019-02-01 Compagnie Generale Des Etablissements Michelin BANDAGE WITH IMPROVED BELT STRUCTURE

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Publication number Priority date Publication date Assignee Title
DE19534808A1 (en) * 1995-09-20 1997-03-27 Continental Ag Reduced wt., and high breaking strength radial pneumatic tyre
US6082423A (en) * 1997-06-09 2000-07-04 The Goodyear Tire & Rubber Company Low cost light weight radial tire
DE102008045506A1 (en) * 2008-09-03 2010-03-04 Continental Reifen Deutschland Gmbh Reinforced carrier is made up of two monofilaments, where monofilaments are twisted or interlaced with one another, and monofilaments consist of non-metallic material
DE102009025850A1 (en) * 2009-05-20 2010-11-25 Continental Reifen Deutschland Gmbh Reinforcements made of steel cords for pneumatic vehicle tires
DE102010000013A1 (en) * 2010-01-07 2011-07-14 Continental Reifen Deutschland GmbH, 30165 Vehicle tires
DE102010000014A1 (en) * 2010-01-07 2011-07-14 Continental Reifen Deutschland GmbH, 30165 Vehicle tires

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See also references of WO2012175305A1 *

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ES2651146T3 (en) 2018-01-24
WO2012175305A1 (en) 2012-12-27
DE102011051288A1 (en) 2012-12-27
EP2723585B1 (en) 2017-09-13

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